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US20100265603A1 - Sealing with foam cartridge - Google Patents

Sealing with foam cartridge Download PDF

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Publication number
US20100265603A1
US20100265603A1 US12/763,247 US76324710A US2010265603A1 US 20100265603 A1 US20100265603 A1 US 20100265603A1 US 76324710 A US76324710 A US 76324710A US 2010265603 A1 US2010265603 A1 US 2010265603A1
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US
United States
Prior art keywords
mirror
foam
vehicle
view mirror
mirror base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
US12/763,247
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US8393743B2 (en
Inventor
Andreas Herrmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMR Patents SARL
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SMR Patents SARL
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Publication date
Application filed by SMR Patents SARL filed Critical SMR Patents SARL
Assigned to SMR PATENTS S.A.R.L. reassignment SMR PATENTS S.A.R.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HERRMANN, ANDREAS
Publication of US20100265603A1 publication Critical patent/US20100265603A1/en
Application granted granted Critical
Publication of US8393743B2 publication Critical patent/US8393743B2/en
Expired - Fee Related legal-status Critical Current
Adjusted expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/02—Rear-view mirror arrangements
    • B60R1/06—Rear-view mirror arrangements mounted on vehicle exterior
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/04—External Ornamental or guard strips; Ornamental inscriptive devices thereon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/06—Sealing strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0892—Insulating elements, e.g. for sound insulation for humidity insulation

Definitions

  • the invention is based on a priority patent application DE 10 2009 019 085.6 which is hereby incorporated by reference.
  • the present invention concerns a rear-view mirror with a mirror seal that is arranged between a mirror base of the rear-view mirror and a car body.
  • a rear-view mirror of a vehicle is installed in such a way that a base carrying the mirror body is affixed to a fastening seat that is attached to the door or to the car body, with fasteners such as nuts and bolts.
  • a seal normally comes to bear between the mirror base and the fastening seat of the vehicle.
  • the mirror seal of this type consists of a flexible material such as polyvinyl chloride and the like.
  • the conventional rear-view mirror seals are equipped with a sealing structure for sealing the recess in relation to the fastening seat of the car body.
  • FIG. 2 shows the seal construction of a door mirror seal according to a conventional example, in which a continuous ridge running along the circumference of the seal 11 sticks out from the surface of the seal.
  • the seal is located opposite the surface of the fastening seat on the vehicle.
  • the ridge is enclosed by a gasket, which creates the sealing function.
  • embodiments are known in which a door mirror seal is introduced in a laminar way between mirror base and the vehicle.
  • the laminar sealing mat is thereby constructed according to the structure of the mirror base. It is inserted between the mirror base and the vehicle during mounting.
  • These insulating materials consist of foamed material, but can also be manufactured from recycling material. Manufacture of the sealing mats and achievement of the sealing and insulating function is described in DE 60306053.
  • the seal has a special lip seal and does without strongly compressible materials.
  • the object of the mirror seal is to guarantee a vibration-free seat for the mirror base on the vehicle and at the same time to prevent intrusion of moisture.
  • the foam-backed door seal according to the invention achieves the object of the invention by the use of a foam cartridge.
  • foam cartridges and foaming technologies is known in the prior art.
  • the hollow spaces in the body are filled with foam as an anti-drumming compound.
  • These hollow spaces are, in part, not easily accessible and awkwardly-shaped.
  • a device and a procedure for foaming hollow spaces are known from DE3838655. In this, a sleeve section is inserted, from out of which the foam component mixture is introduced. Automatic methods or also a hand cartridge are thereby used.
  • the solution according to the invention uses prefabricated foam cartridges.
  • FIG. 1 shows an example of the construction of a rear-view mirror.
  • FIG. 2 shows a foam seal in the prior art.
  • FIG. 3 schematically shows the solution according to the invention.
  • FIG. 4 shows a further embodiment of the invention.
  • FIG. 1 shows a rear-view mirror 1 in exploded view.
  • the rear-view mirror 1 contains a mirror glass 2 that is enclosed in a plastic component, a mirror frame 3 .
  • the mirror glass 2 is seated on a mirror glass carrier 5 with an optional heating surface 4 .
  • the mirror glass carrier 5 is joined to an optional glass mover 7 .
  • the whole construction is mounted on a mirror carrier 8 and covered by a mirror housing 6 .
  • the mirror carrier 5 is mounted on a mirror base 9 .
  • the exact construction of the rear-view mirror 1 and its configuration is not important for the design of the invention.
  • the mirror base 9 is the contact surface, which is screwed to the vehicle, as is shown by way of example in FIG. 2 .
  • the mirror base 9 is thereby screwed onto the fastening seat of the vehicle 17 .
  • the example has three bolts 12 , which when screwed into counternuts 13 fasten the mirror head to the carrying plate 8 .
  • the mirror base 9 itself is screwed onto the vehicle 17 via the screw boss 20 . It has a groove 10 , into which a circumferential seal 11 is installed.
  • the mirror base according to FIG. 3 has no groove for receiving a seal. Rather, the mirror base has a ridge 19 that follows the contour of the mirror base 9 . This ridge 19 serves as a barrier in order to prevent the sealant foam applied from escaping therepast.
  • the ridge 19 follows the contour of the mirror base 9 ; the ridge 19 can, however, enclose a central area of the mirror base 9 .
  • an inlet 14 is provided, into which a small-dimensioned foam cartridge 16 can be fitted.
  • This foam cartridge 16 contains a mixture that generates sealant foam of the volume of the hollow space to be filled either through a chemical reaction or through compressed gas. In order to foam a standard mirror base, volumes of 10-20 cubic centimetres are necessary.
  • the vehicle 17 has a pressure-loaded area 18 on the installation site, which is necessary as a counter bearing for generation of the necessary triggering pressure.
  • the mirror base is equipped with the foam cartridge.
  • the inlet 14 in the mirror base 9 has a triggering device 22 . In normal cases this is a pin that opens the cartridge valve.
  • the mirror base 9 with the foam cartridge 16 is attached to the vehicle and screwed on with bolts as in the prior art. As soon as the gap between mirror base and vehicle is small enough for the pressure on the outlet valve of the cartridge to be big enough, the foam formation is triggered. Care should thereby be taken that the bolting on is carried out equally on all corners of the mirror base 9 (three corners in the embodiment shown in the figures).
  • the mirror base 9 is only fastened onto the vehicle with one central bolt 21 , or with two bolts.
  • the central bolting on is thereby set up in such a way that the mirror base 9 has a screw boss 20 .
  • the foam cartridge 16 finds an inlet for it in the screw boss 20 .
  • the foam exits through openings 23 provided in the screw boss.
  • the triggering of the compressed cartridge is given by the pressure of the bolt 21 that has a triggering device 22 on its point. As a result of this the counter bearing on the vehicle side is no longer needed.
  • the bolt 21 that joins the vehicle and the mirror base triggers the cartridge valve in a particular position.
  • the foam exits via the openings 23 in the screw boss 20 and is apportioned while the bolt 21 is tightened up to the fastening seat.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

A rear-view mirror with foam-backed door seal is presented that fills the space between mirror base and vehicle with a foam in a simple way upon its being mounted to a vehicle.

Description

    BACKGROUND OF THE INVENTION
  • The invention is based on a priority patent application DE 10 2009 019 085.6 which is hereby incorporated by reference.
  • 1. Field of the Invention
  • The present invention concerns a rear-view mirror with a mirror seal that is arranged between a mirror base of the rear-view mirror and a car body.
  • 2. Description of the Related Art
  • In general, a rear-view mirror of a vehicle is installed in such a way that a base carrying the mirror body is affixed to a fastening seat that is attached to the door or to the car body, with fasteners such as nuts and bolts. In this way, a seal normally comes to bear between the mirror base and the fastening seat of the vehicle. The mirror seal of this type consists of a flexible material such as polyvinyl chloride and the like. The conventional rear-view mirror seals are equipped with a sealing structure for sealing the recess in relation to the fastening seat of the car body.
  • One of these embodiments according to the prior art is depicted in FIG. 2. FIG. 2 shows the seal construction of a door mirror seal according to a conventional example, in which a continuous ridge running along the circumference of the seal 11 sticks out from the surface of the seal. The seal is located opposite the surface of the fastening seat on the vehicle. The ridge is enclosed by a gasket, which creates the sealing function. Furthermore, embodiments are known in which a door mirror seal is introduced in a laminar way between mirror base and the vehicle. The laminar sealing mat is thereby constructed according to the structure of the mirror base. It is inserted between the mirror base and the vehicle during mounting. These insulating materials consist of foamed material, but can also be manufactured from recycling material. Manufacture of the sealing mats and achievement of the sealing and insulating function is described in DE 60306053. The seal has a special lip seal and does without strongly compressible materials.
  • From the prior art, from DE 102004014776 A1, it is likewise known how to use 2-component plastics that serve as foam for energy absorption.
    • SUMMARY OF THE INVENTION
  • The object of the mirror seal is to guarantee a vibration-free seat for the mirror base on the vehicle and at the same time to prevent intrusion of moisture.
  • It is an object of the present invention to make a sealing system available that fulfils the objects of a seal in a simple way and simplifies assembly.
  • The foam-backed door seal according to the invention achieves the object of the invention by the use of a foam cartridge. The use of foam cartridges and foaming technologies is known in the prior art. In order to decrease the noise level in a vehicle, the hollow spaces in the body are filled with foam as an anti-drumming compound. These hollow spaces are, in part, not easily accessible and awkwardly-shaped. Foremost among these are the A-, B- and C-columns, as well as body carriers. A device and a procedure for foaming hollow spaces are known from DE3838655. In this, a sleeve section is inserted, from out of which the foam component mixture is introduced. Automatic methods or also a hand cartridge are thereby used.
  • In contrast to this, the solution according to the invention uses prefabricated foam cartridges.
  • The solution to the object and the embodiment will be described in more detail in the following specifications.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 shows an example of the construction of a rear-view mirror.
  • FIG. 2 shows a foam seal in the prior art.
  • FIG. 3 schematically shows the solution according to the invention.
  • FIG. 4 shows a further embodiment of the invention.
    •  DETAILED DESCRIPTION OF THE DRAWINGS
  • FIG. 1 shows a rear-view mirror 1 in exploded view. The rear-view mirror 1 contains a mirror glass 2 that is enclosed in a plastic component, a mirror frame 3. The mirror glass 2 is seated on a mirror glass carrier 5 with an optional heating surface 4. The mirror glass carrier 5 is joined to an optional glass mover 7. The whole construction is mounted on a mirror carrier 8 and covered by a mirror housing 6. The mirror carrier 5 is mounted on a mirror base 9. The exact construction of the rear-view mirror 1 and its configuration is not important for the design of the invention. The mirror base 9 is the contact surface, which is screwed to the vehicle, as is shown by way of example in FIG. 2. The mirror base 9 is thereby screwed onto the fastening seat of the vehicle 17. The example has three bolts 12, which when screwed into counternuts 13 fasten the mirror head to the carrying plate 8. The mirror base 9 itself is screwed onto the vehicle 17 via the screw boss 20. It has a groove 10, into which a circumferential seal 11 is installed.
  • In contrast to this prior art, the mirror base according to FIG. 3 has no groove for receiving a seal. Rather, the mirror base has a ridge 19 that follows the contour of the mirror base 9. This ridge 19 serves as a barrier in order to prevent the sealant foam applied from escaping therepast.
  • In an embodiment, the ridge 19 follows the contour of the mirror base 9; the ridge 19 can, however, enclose a central area of the mirror base 9. A design of the mirror base 9 with a groove 10 and a ridge 19, as well as with several ridges, is likewise possible. The only aim is to optimally apportion the emergent sealant foam while preventing the emergence of the sealant foam out of the area behind or under the mirror base 9. In order to apportion this sealant foam, it is therefore also advantageous to introduce star-shaped structures in the mirror base that extend from the foam's outlet opening.
  • In the mirror base 9, on the vehicle side an inlet 14 is provided, into which a small-dimensioned foam cartridge 16 can be fitted. This foam cartridge 16 contains a mixture that generates sealant foam of the volume of the hollow space to be filled either through a chemical reaction or through compressed gas. In order to foam a standard mirror base, volumes of 10-20 cubic centimetres are necessary. The vehicle 17 has a pressure-loaded area 18 on the installation site, which is necessary as a counter bearing for generation of the necessary triggering pressure. Upon assembly of the mirror according to the invention, the mirror base is equipped with the foam cartridge. The inlet 14 in the mirror base 9 has a triggering device 22. In normal cases this is a pin that opens the cartridge valve. The mirror base 9 with the foam cartridge 16 is attached to the vehicle and screwed on with bolts as in the prior art. As soon as the gap between mirror base and vehicle is small enough for the pressure on the outlet valve of the cartridge to be big enough, the foam formation is triggered. Care should thereby be taken that the bolting on is carried out equally on all corners of the mirror base 9 (three corners in the embodiment shown in the figures).
  • In another embodiment according to FIG. 4, the mirror base 9 is only fastened onto the vehicle with one central bolt 21, or with two bolts. The central bolting on is thereby set up in such a way that the mirror base 9 has a screw boss 20. The foam cartridge 16 finds an inlet for it in the screw boss 20. Upon triggering of the cartridge 16 the foam exits through openings 23 provided in the screw boss. In this embodiment, the triggering of the compressed cartridge is given by the pressure of the bolt 21 that has a triggering device 22 on its point. As a result of this the counter bearing on the vehicle side is no longer needed. The bolt 21 that joins the vehicle and the mirror base triggers the cartridge valve in a particular position. The foam exits via the openings 23 in the screw boss 20 and is apportioned while the bolt 21 is tightened up to the fastening seat.
  • In order to create sufficient room for the cartridge, in a further embodiment we provide a bush that extends the screw boss to the base. Through this more space is created for the cartridge, and the arrangement of the exit openings is improved.
    • Legend:
  • 1 Rear-view mirror
  • 2 Mirror glass
  • 3 Mirror frame
  • 4 Heating
  • 5 Mirror glass carrier
  • 6 Housing
  • 7 Glass mover
  • 8 Mirror carrier
  • 9 Mirror base
  • 10 Groove
  • 11 Lip seal
  • 12 Bolts
  • 13 Nuts
  • 14 Inlet
  • 15 Bolting-on points
  • 16 Foam cartridge
  • 17 Vehicle
  • 18 Pressure-loaded point
  • 19 Ridge
  • 20 Screw boss
  • 21 Screw to the vehicle
  • 22 Triggering device
  • 23 Outlet opening

Claims (7)

1. Rear-view mirror with a mirror head and a mirror base, with which the rear- view mirror is fastened by at least one screw connection to a vehicle, characterised in that the mirror base has at least one inlet for a foam cartridge.
2. Rear-view mirror according to claim 1, characterised in that the mirror base has at least one ridge following its outer contour.
3. Rear-view mirror according to claim 1, characterised in that the inlet contains a pin for activating the valve of the foam cartridge.
4. Rear-view mirror according to claim 3, characterised in that the foam cartridge presses onto an abutment on the vehicle.
5. Rear-view mirror according to claim 1, characterised in that the inlet consists of a screw boss.
6. Rear-view mirror according to claim 5, characterised in that the screw boss has openings to let the foam out.
7. Rear-view mirror according to claim 1, characterised in that the valve of the foam cartridge is triggered by the bolt making up the connection to the vehicle.
US12/763,247 2009-04-20 2010-04-20 Sealing with foam cartridge Expired - Fee Related US8393743B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009019085 2009-04-20
DE102009019085A DE102009019085B3 (en) 2009-04-20 2009-04-20 Rearview mirror with automatically foamed door seal
DE102009019085.6 2009-04-20

Publications (2)

Publication Number Publication Date
US20100265603A1 true US20100265603A1 (en) 2010-10-21
US8393743B2 US8393743B2 (en) 2013-03-12

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US12/763,247 Expired - Fee Related US8393743B2 (en) 2009-04-20 2010-04-20 Sealing with foam cartridge

Country Status (3)

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US (1) US8393743B2 (en)
CN (1) CN101863245B (en)
DE (1) DE102009019085B3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150138658A1 (en) * 2012-06-29 2015-05-21 Murakami Corporation Door mirror
US20150239327A1 (en) * 2014-02-21 2015-08-27 Ford Global Technologies, Llc Automotive door structure for sail mounted mirrors
JP2015202737A (en) * 2014-04-11 2015-11-16 サカエ理研工業株式会社 Vehicular mirror device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103303201A (en) * 2013-07-08 2013-09-18 上汽通用五菱汽车股份有限公司 Installation device for outside rear-view mirrors of automobile
CN103612601B (en) * 2013-12-13 2015-08-05 北京汽车股份有限公司 Automobile outer rear-view mirror poted assemblies
CN112590947B (en) * 2020-12-25 2024-05-24 浙江戴德隆翠汽车有限公司 A kind of broken bridge car body connection structure of caravan

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6969038B1 (en) * 1999-02-05 2005-11-29 Schefenacker Vision Systems Australia Pty Ltd Vehicle external mirror assembly and method of manufacture
US7189796B2 (en) * 2002-11-01 2007-03-13 Teijin Chemicals, Ltd. Aromatic polycarbonate resin composition
US7690615B2 (en) * 2002-09-06 2010-04-06 Murakami Corporation Gasket for door mirror

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH065264Y2 (en) * 1988-07-04 1994-02-09 株式会社東海理化電機製作所 Seal structure for door mirror rotation gap
DE3838655A1 (en) 1988-11-15 1990-05-17 Bayerische Motoren Werke Ag Process and apparatus for filling vehicle body cavities with foam
US6291536B1 (en) * 1998-02-07 2001-09-18 Dap Products Inc. Foamed caulk and sealant compounds
JP2003154895A (en) * 2001-11-21 2003-05-27 Oshima Denki Seisakusho:Kk Sealing structure of motor-driven retractable mirror for vehicle
DE102004014776A1 (en) * 2004-03-26 2005-10-13 Volkswagen Ag Longitudinal support for vehicle, especially motor vehicle, has energy absorbing device(s) that interacts with piston-cylinder arrangement activated in collision, especially frontal collision with energy absorption by energy absorber

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6969038B1 (en) * 1999-02-05 2005-11-29 Schefenacker Vision Systems Australia Pty Ltd Vehicle external mirror assembly and method of manufacture
US7690615B2 (en) * 2002-09-06 2010-04-06 Murakami Corporation Gasket for door mirror
US7189796B2 (en) * 2002-11-01 2007-03-13 Teijin Chemicals, Ltd. Aromatic polycarbonate resin composition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150138658A1 (en) * 2012-06-29 2015-05-21 Murakami Corporation Door mirror
US20150239327A1 (en) * 2014-02-21 2015-08-27 Ford Global Technologies, Llc Automotive door structure for sail mounted mirrors
US10150354B2 (en) * 2014-02-21 2018-12-11 Ford Global Technologies, Llc Automotive door structure for sail mounted mirrors
JP2015202737A (en) * 2014-04-11 2015-11-16 サカエ理研工業株式会社 Vehicular mirror device

Also Published As

Publication number Publication date
CN101863245A (en) 2010-10-20
US8393743B2 (en) 2013-03-12
CN101863245B (en) 2013-10-02
DE102009019085B3 (en) 2010-10-21

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